445471282620 has 1152 divisors, whose sum is σ = 1806968217600. Its totient is φ = 86227255296.

The previous prime is 445471282577. The next prime is 445471282681. The reversal of 445471282620 is 26282174544.

445471282620 is a `hidden beast` number, since 4 + 4 + 5 + 4 + 7 + 12 + 8 + 2 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1863896461 + ... + 1863896699.

It is an arithmetic number, because the mean of its divisors is an integer number (1568548800).

Almost surely, 2^445471282620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445471282620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903484108800).

445471282620 is an abundant number, since it is smaller than the sum of its proper divisors (1361496934980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445471282620 is a wasteful number, since it uses less digits than its factorization.

445471282620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 445471282620 in words is "four hundred forty-five billion, four hundred seventy-one million, two hundred eighty-two thousand, six hundred twenty".